Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2011 Adam Shanks (ChainsDD)
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/

import android.content.Context;

import android.content.pm.PackageInfo;
import android.content.pm.PackageManager;

public class Main {
    public static final int MALICIOUS_NOT = 0;
    public static final int MALICIOUS_UID = 1;

    public static int isPackageMalicious(Context context, PackageInfo packageInfo) {
        // If the package being checked is this one, it's not malicious
        if (packageInfo.packageName.equals(context.getPackageName())) {
            return MALICIOUS_NOT;
        }

        // If the package being checked shares a UID with Superuser, it's
        // probably malicious
        if (packageInfo.applicationInfo.uid == context.getApplicationInfo().uid) {
            return MALICIOUS_UID;
        }

        // Finally we check for any permissions that other apps should not have.
        if (packageInfo.requestedPermissions != null) {
            String[] bannedPermissions = new String[] { "com.noshufou.android.su.RESPOND",
                    "com.noshufou.android.su.provider.WRITE" };
            for (String s : packageInfo.requestedPermissions) {
                for (int i = 0; i < 2; i++) {
                    if (s.equals(bannedPermissions[i])
                            && context.getPackageManager().checkPermission(bannedPermissions[i],
                                    packageInfo.packageName) == PackageManager.PERMISSION_GRANTED) {
                        return i + 2;
                    }
                }
            }
        }

        return MALICIOUS_NOT;
    }
}